If you are active in FB or twitter!, your free time can be used to make money with the adf.ly . Why not..? this is really....very simple , doesn't require blogs, websites, or money , just a few click of your mouse to copy-paste any URL into adf.ly , then click on the shrink button...and then place anywhere, on twitter, facebook, email, blog...etc.. and all who clicked on the link, adf.ly will pay you...

More complete, about what is Adf.ly..? and How does it work? , you can read it directly on the site

We are a free URL shortening service with a twist..get paid to share your links on the Internet! Just register for an account and start shrinking. You get paid for every person that visits your URLs. Example URL for Google: http://adf.ly/5XR Place your links on Facebook.., Twitter.., forums.., personal websites.., and any social networking sites.